US2222192A - Flatiron - Google Patents

Flatiron Download PDF

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Publication number
US2222192A
US2222192A US234628A US23462838A US2222192A US 2222192 A US2222192 A US 2222192A US 234628 A US234628 A US 234628A US 23462838 A US23462838 A US 23462838A US 2222192 A US2222192 A US 2222192A
Authority
US
United States
Prior art keywords
slot
cover plate
heating element
side walls
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US234628A
Other languages
English (en)
Inventor
Edwin E Arnold
William J Russell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US234628A priority Critical patent/US2222192A/en
Priority to NL95090A priority patent/NL59864C/xx
Priority to GB26353/39A priority patent/GB532844A/en
Priority to FR860344D priority patent/FR860344A/fr
Priority to BE436638D priority patent/BE436638A/xx
Priority to CH216669D priority patent/CH216669A/fr
Application granted granted Critical
Publication of US2222192A publication Critical patent/US2222192A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat

Definitions

  • Our invention relates to electrically heated devices, and particularly to fiatirons, or the like, having recesses therein for the reception of ceramically insulated heating elements.
  • cover plates initially wider than the groove or heater slot which, in some cases, may have tapered side walls.
  • cover plates are in the form of hollow troughs or channels and, upon being pressed downwardly within the slot, their upwardly extending flange portions contact such side walls at acute angles.
  • the friction of such anguiarly related flanges on the walls thus constitutes substantially the only means for retaining the cover plate within the heater-slot.
  • Such construction permits the cover plate to loosen, thus exposing the insulation.
  • inverted channel-shaped cover plates which have down wardly extending flanges. In such a case, these smooth flanges have even less frictional contact with the side walls, and are forced to rely mainly on their bond with the insulating material to retain their desired location.
  • a further disadvantage of such proposed cover plates is that in some instances they are necessarily placed in position before the cementitious insulating material has hardened. In other words, a bond between the cementitious insulating material and the cover plate is used to retain the plates in position. This method of retaining the cover plates is very ineflicient inasmuch as such bond is readily broken when the iron is 40 jarred or bumped.
  • the heating element and insulating material 15 are mechanically protected and retained'within the slot by means of an upwardly arched clamping plate which is initially narrower than the slot.
  • the plate upon being subjected to sufiicient pressure, flattens or straightens out and forms an intimate metal-to-metal bond or union with the side walls of the slot while further compacting the previously separately hardened insulating material and forcing it to make an intimate bond or union with the slot side walls and the cover plate.
  • One object of our invention is to provide a flatiron having an exceptionally efflcient ellipticalor substantially rectangularsectioned high-wattage heating coil positioned ,0 within a relatively narrow elongated heater channel or slot and insulated from the walls thereof by means of a suitable refractory or cementitious material in intimate contact .with said walls.
  • a further object of our invention is to provide a cover plate for heating elements of the type set forth, which wilf form an intimate metal-tometalbondorunionwiththewallsoftheheater slot.
  • a still further object of our invention is to provideanatironhavingaslottedsoleplatewithan ellipticaily coiled heating element insulatedly disposed therein and an initially arched cover plate therefor, initially narrower than the slot, horisontallyensll nithesidewallsofsuchslottc lowing description of a device embodying our invention,orwillbeapparentfromsuchdescrip-
  • Figure 1 is a side elevational view of the completed iron embodyins my invention
  • Fig. 2 is a perspective view of the sole plate and heating element associated therewith;
  • Fig.3 is a sectional view takenalong theline m-m of Fla. 2:.
  • . l 'lgasandoareenlargedfragmentarysectionsl views similar to Fig. 8, showing the cover plate in its various positions;
  • Fig.6 isanenlargedfragmentarysecti view similar to Fig. 3, showing the metal-to-metal '0 bond between the cover plate and the slot; and l'ig.'lisasectionalviewilhistratingapimchpress structure forforming the cover plate.
  • Thesoleplate n (i -id a) has a channel-likeslot ll extending aroundthesoleplatenearitsedgeasoastodeme a ushiy triangular central recessed area 2. whichisadaptedtoretainathermostatic switchlhsuchasthatdescribedandclaimdina I copending application of I. K. Clark, Serial No. 237,270, filed October 2'1. 1988, and assigned totheassignee ofour present application.
  • a heating element 22 is surrounded and supported within the slot II by insulating material ll, 1. which is retained therein by a clamping cover iplate ll. as hereinafter described.
  • the sole plate I! is preferably formed from a cast material which, due to the processor cuting, produces a rough exterior surface. This roughened surface is easily ground and polished to make a suitable working ironing surface.
  • the narrow slot It. being formed integrally .with the sole plate. also has a roughened sandiikewallwhichaidsinretainingthecoverplate 28 within the slot II, as hereinafter described.
  • the slot It is formed primarilyby the metallic upwardly extending portions or walls It of the sole plate It. These portions being formed of a heat conducting metal integral with the sole plate, readily and witha maximum eiilciency. conduct the heat produced within the slot II to the working surface of the sole plate.
  • the heating element 2! in our structure is formed of a suitable electrical resistance wire into substantially an elliptical or rectangular coiled element, with the longer sides thereof substantially parallel, as shown in Pig. 8. mils structure permits the elongated substantially parallel sides of the heating element to be positioned relatively close to the side walls of the slot ll. with the heating element formed in such a manner. It is obvious that substantially all of the heat developed thereby will be readily and eiiiciently conducteddirectlytothesidewallsoftheslot and will have to penetrate a minimum average thickness of insulation. In other words, there willt not be an inenicient centrally located hot 890 Th heating element 22 is insulated from and supported within the slot II.
  • the metallic cover plate It is preferably formed fromasinglesheetofmetalsoastohavean initialcrosssectionnarrowerthantheslctil with substantially the same general configuration as the slot.
  • the cover plate is given an initial arch or convex upward curvature (a downward curvature in the punch-press. see Fig. 7) before beinginitiallyseveredfromthestock. 1
  • the die 30 of the punch press operating within the hold-down plate 22, is formed so as to stretch or shape the plate 26 into an arched position before shearing it from the initial stock plate 3
  • the cover 26 then retains the initial arch formed therein and remains narrower than the slot l8.
  • the cover plate 26 is preferably formed as a single solid unitary member. However, if it be desired, the plate may have a series of staggered transverse notches therein to permit more ready expansion and contraction thereof.
  • the sole plate i2 is originally cast, leaving the roughened narrow slot i6 which is substantially narrower than its height.
  • the elliptical heating element 22 being formed substantially the same width as the slot l8 and suitably insulated by a method as described by E. K. Clark in his aboveidentifled copendlng application, is then positioned within the slot IS with the parallel sides thereof being positioned close to and parallel with the side walls of the slot l8 so as to be in direct thermal communication with the sole plate l2.
  • a suitable pressure device not shown, substantially the same general shape as the slot I8, is then positioned upon the cover plate 26 and pressure applied thereto. Inasmuch as the pressure-applying device is substantially the same shape as the slot l8, such pressure applying device will apply a uniform pressure to the cover plate 26 throughout its entire length. In addition, as the cover plate 26 is arched or convexed upwardly, the pressure applying device will then cause the cover plate to become broken-arched or to straighten out.
  • the cover plate will first be retained within the slot by cooperating with the solid insulating material 24, and will then engage the side walls of the slot l6. As the outer edge of the cover plate 26 engages the roughened side walls of the slot l8, the friction therebetween will limit the downward movement of the cover plate.
  • cover plate 26 After the cover plate 26 has been brokenarched or straightened, the edges thereof will thus have an intimate metal-to-metal bond therewith.
  • This bond between the cover plate 26 and the slot side walls is of such a character that it hermetically seals such slot to afford full protection for the heating element 22 and insulating material 24.
  • the elliptical or substantially rectangular heating element 22 embodied in our invention permits the application of pressure upon the insulating material without any danger of shifting resistors and the consequent danger of short circuits therebetween.
  • the elliptical or substantlally rectangular shaped heating element 22 permits full direct radiation and conduction of heat to the heater slot side walls so as to effect a maximum delivery of heat to the operating surface of the fiatiron, through the cooperation of the metallic slot side walls.
  • a iiatiron comprising, in combination, a sole plate having formed therein a slot, an electrical heating element disposed within and insulated from the inner walls of such slot, and a tieaily coiled electrical heating element disposed within the slot, insulating material surrounding and retaining the element therein, and a we! plate therefor, initially narrower than the slot. engaging the side walls in a plane substantially normal thereto.
  • a ilatiron comprising, in combination, a sole plate having iormed therein a slot oi greater depth than width. an elliptieally coiled electrical heating element disposed within the slot with the major axis thereof positioned substantially normaltothebaseandparalleltothesidewalls oi the slot. insulating material surrounding the element and supporting it within the slot. and a cover plate therefor, initially narrower than the slot. broken-arched into a metal-to-metal bond with the side walls of the slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Thermistors And Varistors (AREA)
US234628A 1938-10-12 1938-10-12 Flatiron Expired - Lifetime US2222192A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US234628A US2222192A (en) 1938-10-12 1938-10-12 Flatiron
NL95090A NL59864C (en(2012)) 1938-10-12 1939-09-04
GB26353/39A GB532844A (en) 1938-10-12 1939-09-21 Improvements in or relating to electric flatirons
FR860344D FR860344A (fr) 1938-10-12 1939-09-21 Perfectionnements aux fers à repasser électriques
BE436638D BE436638A (en(2012)) 1938-10-12 1939-10-10
CH216669D CH216669A (fr) 1938-10-12 1939-10-10 Fer à repasser.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US234628A US2222192A (en) 1938-10-12 1938-10-12 Flatiron

Publications (1)

Publication Number Publication Date
US2222192A true US2222192A (en) 1940-11-19

Family

ID=22882144

Family Applications (1)

Application Number Title Priority Date Filing Date
US234628A Expired - Lifetime US2222192A (en) 1938-10-12 1938-10-12 Flatiron

Country Status (6)

Country Link
US (1) US2222192A (en(2012))
BE (1) BE436638A (en(2012))
CH (1) CH216669A (en(2012))
FR (1) FR860344A (en(2012))
GB (1) GB532844A (en(2012))
NL (1) NL59864C (en(2012))

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458471A (en) * 1946-03-13 1949-01-04 Eureka Williams Corp Embedded heating element and method of making the same
US2485672A (en) * 1946-09-06 1949-10-25 Birtman Electric Co Heating element
US2512692A (en) * 1947-01-15 1950-06-27 Birtman Electric Co Resistance element and electric iron containing the same
US2524944A (en) * 1947-11-14 1950-10-10 Eureka Williams Corp Soleplate for irons and method for making the same
US2541118A (en) * 1945-04-11 1951-02-13 Birtman Electric Co Resistance element for electric irons
US3277273A (en) * 1964-05-11 1966-10-04 Harry H Williams Electric radiant heating panel
US20060075971A1 (en) * 2004-10-13 2006-04-13 Applied Materials, Inc. Heated substrate support and method of fabricating same
JP2006111973A (ja) * 2004-10-13 2006-04-27 Applied Materials Inc 加熱基板支持体及びその製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281071B (de) * 1964-08-01 1968-10-24 Siemens Electrogeraete Ges Mit Elektrisch beheiztes Buegeleisen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541118A (en) * 1945-04-11 1951-02-13 Birtman Electric Co Resistance element for electric irons
US2458471A (en) * 1946-03-13 1949-01-04 Eureka Williams Corp Embedded heating element and method of making the same
US2485672A (en) * 1946-09-06 1949-10-25 Birtman Electric Co Heating element
US2512692A (en) * 1947-01-15 1950-06-27 Birtman Electric Co Resistance element and electric iron containing the same
US2524944A (en) * 1947-11-14 1950-10-10 Eureka Williams Corp Soleplate for irons and method for making the same
US3277273A (en) * 1964-05-11 1966-10-04 Harry H Williams Electric radiant heating panel
US20060075971A1 (en) * 2004-10-13 2006-04-13 Applied Materials, Inc. Heated substrate support and method of fabricating same
JP2006111973A (ja) * 2004-10-13 2006-04-27 Applied Materials Inc 加熱基板支持体及びその製造方法
US20080271309A1 (en) * 2004-10-13 2008-11-06 Guenther Rolf A Heated substrate support and method of fabricating same
US7674338B2 (en) * 2004-10-13 2010-03-09 Applied Materials, Inc. Heated substrate support and method of fabricating same
US8065789B2 (en) 2004-10-13 2011-11-29 Applied Materials, Inc. Method of fabricating a heated substrate support

Also Published As

Publication number Publication date
BE436638A (en(2012)) 1939-11-30
FR860344A (fr) 1941-01-11
NL59864C (en(2012)) 1947-09-15
CH216669A (fr) 1941-09-15
GB532844A (en) 1941-01-31

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